A cube rests on a flat surface. If the flat surface is inclined at an angle of 45 degrees with respect to the horizontal, then where is the point of application of the contact forces between the cube and the flat surface? Multiple choice question. At the lower corner of the cube that is in contact with the flat surface At the upper corner of the cube that is in contact with the flat surface At the middle of the bottom of the cube that is in contact with the flat surface